EASY
Earn 100

The maximum displacement of the particle from its mean position is known as:

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Important Questions on Sound

HARD

The sound of same pitch and loudness are distinguished from one another by their

MEDIUM
Two different instruments (say, guitar and harmonium), playing the same music, their sound appears different though they play same frequency, because:
EASY
The speed of sound in air at NTP is 332 m/s. If air pressure becomes four times the normal then the speed of sound waves will
EASY
Consider the following statements :
(A) The velocity of sound in air increases due to presence of moisture in it.
(R) The presence of moisture in air lowers the density of air.
In the above statements:
EASY
When sound is refracted from air to water, which of the following will remain unchanged?
EASY
The velocity of sound wave in a given medium is V when its frequency is ν. The velocity, when the frequency changes to 5ν is :
MEDIUM

The linear distance between a consecutive compression and rarefaction in longitudinal wave is

EASY
The wave having compression and rarefaction is known as
EASY
If the speed of wave is 350 m/s and its wavelength is 100 cm then the frequency of the wave will be
MEDIUM

The given graph shows the displacement versus time relation for a disturbance travelling with velocity 1500 m/s. The wavelength of the disturbance will be

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EASY
Waves inside a gas are
EASY
The frequency of radio waves from a certain radio station is 600 KHz. Its wavelength is
EASY
If the speed of wave is 250 m/s and its wavelength is 50 cm then the frequency will be:
MEDIUM
Consider the following statements and select the correct alternative: Statement (A): The frequency of the sound wave whose wave length is 1.5 cm with speed 339 m/s is 22600 Hz. Statement (B): The given sound is audible to human beings.
EASY
The speed of a wave in a medium is 760 ms-1.If 3600 waves are passing through a point in the medium in 2 minutes then its wavelength is 
HARD

For the wave shown in figure, calculate the frequency and wave length of the wave if its speed is 320 ms–1.

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MEDIUM
What are acoustically measurable quantities related to pitch and loudness?
EASY
How can we know from a distance that a car is approaching us?
EASY
If you place some small beads on a drum, what will you observe when you beat this drum with a drumstick? Explain.
EASY
A running watch is placed in vacuum. Will you be able to listen to its ticking sound? Why?